Projecting mechanism



April 7, 1931- G. RoulLLER ET AL PROJECTING MECHANISM Filed July 2. 192B2 Sheets-Sheet l FIG- 1 April' 7, 1931.

G. ROUILLER ET AL PRoJEcTING MECHANISM Filad July 2. 1928 2 Sheets-Sheet2 Patented Apr. 7, -1931 UNITED STATES PATENT OFFICE PROJECTINGMECHANISM Application filed July 2, 1928, Serial No. 289,914, and inFrance July 25, 1927.

Our invention relates to a mechanism of simple construction moreparticularly designed for use in projecting apparatus employed foradvertising purposes of the kind which comprise an endless film magazinesuch as the one described in the U. S. Patent No. 1,713,921, dated May21, 1929. The

presence of delivery drums at the exit and at the'inlet of the endlessmagazine in the device described in said application makes unnecessarythose provided on the ordinary projecting apparatus as it is sufiicientto produce a fiexible loop on both sides of the intermittent deliverydevice.

On thev other hand as the projecting apparatus used for advertisingpurposes works without supervision the picture framing device may bedispensed with, the places where the ends are assembled being carefullygummed together the same picture will pass exactly at the same place. Itwill therefore 'be sufiicient toprovide an optimum proportion betweenthe Window and the intermittent delivery device, and also to veryslightly reduce the height of the window to provide for the diilerentpitch of the various bands which are gummed together.

The projecting mechanism according to oui` invention fulfils all therequired conditions and allows of constructing projecting apparatus at acost'much lower thanA that of existing apparatus besides providingconsiderable improvements such for example as an accelerated moving awayof the picture the continuousregular speed of the obturating deviceremaining unchanged. This latter device may constitute at the same timea fan and rotate at a speed which is for example three times greater.The appended drawings show by way of example a mode of execution of anapparatus constructed according to the present invention.

Fig. 1 is a part sectional view of our imp xoved mechanism, seen partlyfrom the outs1 e.

Fig. 2 is a sectional view on line 2 2 Fig. 1.

ig. 3 is another sectional view on line 3 3 Fig. 2.

As will be seen in Fig. 2 the delivery device 1 designed tointermittently feed the film is secured at one end of the shaft 2 theother end of which is in the shape of a Maltese cross 3 as indicated inFig. 3.

rlhe shaft 2 rotates in a boss 4 made in one With the casing 8 and iskept in position by means of ay washer 6 and a nut 7 the casing 8 ismaintained in its correct position by a spur 9. Upon the `wall of thecasing 8, on the same vside as the Maltese cross is mounted a plateprovided with fingers 10 rotating on a shaft 11 provided with a bearing,the portion of said shaft which passes through the wall of the casing 8being slightly excentric in order to -adjust the distance between theplate 10 and the Maltese cross 3; when thus adjusted the shaft 11 islocked by means of a locking nut 12. e j

The plate 10 is provided with a finger 13 which engaging tangentiallyone of the grooves of the Maltese cross 3 communicates intermittently tothe latter a smooth and noiseless movement of 1A, of revoii iion forevery revolution of the plate. On said plate 10 is also provided on theside opposite to finger l13 a second finger '14 diametrically oppositeto the first' which' engages-in a groove 15 of plate16 in order tooperate said plate 10 and cause it to move with an uniformly acceleratedand then sloweddown speed, the shaft 17 which carries the plate 16being` eccentered relatively to shaft 11. It will be noted that in thatcase it is the grooved plate that drives the finger 14 or if consideringa case of general mechanics it is the slide that drives the crank pin,contrarily to what generally obtains in view of reducing the spacerequired, the arrangement shown being circumscribed in a more reducedspace.

On the other part both fingers 13, 14 are placed upon the same plateVand as they are of the same diameter the construction is greatlyfacilitated.

The advance of the film takes place in the passage at the moment whenthe speed of plate 10 is accelerated, the plate 10 moving at an angle ofduring the time that the plate 16 moves at an angle of 60 or lessaccording to the given eccentricity.

The cover 18 of the casing 8 constitutesr a bosses of frame 5. The

' ings 34, 35, said shaft carrying a regulating bearing for the shaft 17of plate 16 said shaft carrying a pinion 19 actuated by a pinion 20madein one with the shaft 21 which is carried by bearings 22, 23provided in the shaft 21 may extend outside and issplit to receiveeventually a handle provided'with a pin 24 which allows of operating themechanism by hand.

A grooved pulley 25 keyed upon shaft 21 drives the mechanism byl meansof a belt driven itself by a. motor.

The pinion 26 which is also keyed upon shaft 21 drives a pinion 27 madeintegral with shaft 28 carrying the obturating device 29 whichconstitutes a fan as already said.

The obturating blade has for example 180 but rotates at a speed which isthree times higher than that of the shaft 17 of plate 16 the lattermoving a distance of during the same timev and simultaneously, theventilation being consequently much more intensive. The fan suctionopening is provided at 30 in the casing 31 secured to the frame 5.

Thepinion 19 may eventually drive a pinion 32 keyed upon a shaft 33carried in bearfly wheel 36 and an endless screw 37 which drive by meansof a hollow wheel the vertical shaft of the endless film magazine.

A ate 39 carrying spring shoes 40 closes the passage 38. Y It will beunderstood that the design and detail construction may be variouslychanged considered as within the scope of the following claims. Y

What I claim and desire to secure by Letters Patent of the United Statesis:

1. A- projecting apparatus mechanism ing said finger upon one side ashaft carrysaid plate, a second finger von the other Y si e of the late,a Maltese erossfdevice operated by sal finger, a casing containing 'bothplates, means allowing the driving shafts of both latestg be operatedlin such a manner that t e drlvmg plate of the Maltese cross is driven ina egularly accelerated manner and then delaye which' comprises: adriving shaft; a

upon a transverse shaftgearing with the first, a driving plate carriedupon the transverse s plate of the Maltese cross rotates carried .on

cross operating plate,

or modified but all such changes are to be which comprises: a drivingshaft, a pinion- 2. A` projecting apparatus` mechanism\ shaft, a Maltesecross, a driving plate for.

the other side of the casing, said shaft bein excentric relatively tothe transverse sha which carries a.- driving shaft, a radial oove inthe. driving plate, a finger ed upon one side of the Maltese crossoperating plate engaged with the Agroove in the driving plate,

a second finger upon v the Maltese cross operating plate placeddiametrically opposite the finger engaged with the groove in the drivingplate and on the other side of the plate, .a Maltese cross deviceactuated by the second finger, a shaft upon which the Maltese cross iskeyed, a film delivery shaft, a pinion secured upon the end of thedriving shaft, a second pinion in ear with the first keyed upon theupper s aft, and means to drive the vertical shaft of the endless fllmmagazine. Y 3. A projecting a paratus mechanismcomprising: a driving saft, a pinion keyed upon same; a second pinion keyed upon a transverseshaft in gear with the first, a driving device keyed upon the end ofsaid l plate carried upon the transverse shaft, an l operating shaft forthe Maltese cross, a cas-v ing containing both plates and the Maltesecross, a slightly eccentered shaft fixed on the casing wall upon theposition of said shaft being adjustable in order to determine theinterval between the operatin late and the Maltese cross, a screwthreades aft carried upon the stationary shaft, a locking nut upon said screwin order to adjust the osition of the shaft, the driving shaft an theMaltese cross operating shaft being eccentered relatively to each otherin such a manner as to drive the Maltese cross operating plate first ata speed which is regularly accelerated and afterwards slowed down, theforward movement of groove in the driving plate, a finger secured on oneside of the operating plate and engaged with the groove in the ivmgplate, a second finger on the Maltese cross. operating platediametrically opposite on the other side 'of the driving plate, aMaltese cross actuated by the second finger a shaft carrying the Maltesecross and a delivery device, .an obturating f an device actuated by thedriving shaft and means driven by the pinion on the driving shaft fordriving an endless film mechanism.

4. A projecting apparatus mechanism comprising: a driving shaft, apinion keyed on imo keyed upon said shaft, a second pinionllre'yed same,a second pinion keyed upon a trans- \.\verse shaft in gear with thefirst pinion, a driving plate upon said transverse shaft, a Maltesecross operating plate, a easing containing both plates and the Maltesecross, a slightly eccentered adjustable shaft on which the Maltese crossoperating plate rotates., a groove in the driving plate, a finger fixedwhich rotates the Maltese the film taking place during' the slowed downperiod, a radiallll upcn one side of the Maltese-cross operating plateengaged with the groove in the Maltese cross operating plate, a, Maltesecross operated by the second finger, a shaft carrying the Maltese crossand a film delivery device, an obturating fan device operated by thedriving shaft, a pinion earned upon a shaft arranged in parallel withthe shaft of the driving plate and engaging the plate driving pinion,and anvendless screw keyed upon the shaft of the irst pinion in order todrive the vertical shaft of the endless film magazine.

In testimony that we claim the foregoing as our invention, We have si edour names.

GEORGES OUILLER. JEAN MARION.

